Comet 3I Atlas UPSC: NASA Releases New Images | GS-3 Space Technology

 1. Context
NASA released new images of Comet 3I/Atlas, the third known interstellar object after 1I/‘Oumuamua and 2I/Borisov.
It originated outside our solar system.

2. What is a Comet?
An icy, dusty body that orbits the Sun and forms a glowing tail when heated.

3. Key Points

3I/Atlas – Interstellar Comet
• Detected on July 1.
• Formed in another star system; entered ours via gravitational push.

Interstellar Objects
• Originate beyond the solar system.
• Not bound to the Sun’s gravity.
• Ejected/slingshotted from other systems or by collisions.

How Identified
• Solar-system bodies → closed elliptical orbits.
• Interstellar objects → open hyperbolic orbit (Sun’s gravity cannot retain them).✔ Why Important
• Reveal how other planetary systems form,
• Provide clues on extrastellar materials,
• Help study object movement between star systems.

About the UPSC Civil Services Examination (UPSC CSE)

The UPSC Civil Services Examination (CSE) is one of the most competitive and esteemed examinations in India, conducted by the Union Public Service Commission to recruit officers for services such as the Indian Administrative Service (IAS), Indian Police Service (IPS), Indian Foreign Service (IFS), and others. The exam comprises three stages — Prelims, Mains, and the Personality Test (Interview) — designed to test a candidate’s knowledge, aptitude, decision-making, and leadership skills.


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